Particle-Based Boundary Conditions - Revision history

Nairnj: /* Introduction */

2023-11-17T17:24:46Z

Introduction

← Older revision		Revision as of 17:24, 17 November 2023
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	== Introduction ==		== Introduction ==

	Particle-based boundary conditions are used to apply conditions directly to particles for loads, tractions, heat fluxes, and concentration fluxes. Particle-based boundary conditions are typically applied to particles on the boundary of the object. Besides particle conditions, simulations can set [[Grid-Based Boundary Conditions]].		Particle-based boundary conditions are used to apply conditions directly to particles for loads, tractions, heat fluxes, and concentration fluxes. Particle-based boundary conditions are typically applied to particles on the boundary of the object. Some particle-based boundary conditions instead set initial some particle properties (''e.g.'', damage). Besides particle conditions, simulations can set [[Grid-Based Boundary Conditions]].

	==Particle-Based Boundary Condition Commands ==		==Particle-Based Boundary Condition Commands ==

Nairnj: /* Particle-Based Boundary Condition Commands */

2023-11-17T17:17:16Z

Particle-Based Boundary Condition Commands

← Older revision		Revision as of 17:17, 17 November 2023
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	The particles that will get boundary conditions are selected by defining one [[2D MPM Shape Commands\|2D shape]] (for 2D simulations) or one [[3D MPM Shape Commands\|3D shape]] (for 3D simulations). The shape can be a [[Nested Shapes\|nested shape]].		The particles that will get boundary conditions are selected by defining one [[2D MPM Shape Commands\|2D shape]] (for 2D simulations) or one [[3D MPM Shape Commands\|3D shape]] (for 3D simulations). The shape can be a [[Nested Shapes\|nested shape]].

	All particles within the one shape will be set to all provided [[Setting Forces and Fluxes\|conditions (load, traction, heat, concentration, pore pressure flux, and/or damage)]].		All particles within the one shape will be set to all provided [[Setting Forces and Fluxes\|conditions (load, traction, heat, concentration, pore pressure flux, and/or initial damage or phase field)]].

	=== Deprecated Commands ===		=== Deprecated Commands ===

Nairnj: /* Particle-Based Boundary Condition Commands */

2022-01-06T03:56:58Z

Particle-Based Boundary Condition Commands

← Older revision		Revision as of 03:56, 6 January 2022
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	The particles that will get boundary conditions are selected by defining one [[2D MPM Shape Commands\|2D shape]] (for 2D simulations) or one [[3D MPM Shape Commands\|3D shape]] (for 3D simulations). The shape can be a [[Nested Shapes\|nested shape]].		The particles that will get boundary conditions are selected by defining one [[2D MPM Shape Commands\|2D shape]] (for 2D simulations) or one [[3D MPM Shape Commands\|3D shape]] (for 3D simulations). The shape can be a [[Nested Shapes\|nested shape]].

	All particles within the one shape will be set to all provided [[Setting Forces and Fluxes\|conditions (load, traction, heat, concentration, ~~and/or~~ pore pressure flux, damage)]].		All particles within the one shape will be set to all provided [[Setting Forces and Fluxes\|conditions (load, traction, heat, concentration, pore pressure flux, and/or damage)]].

	=== Deprecated Commands ===		=== Deprecated Commands ===

Nairnj: /* Explicit Grid-Based Boundary Condition in XML Files */

2019-03-01T19:47:47Z

Explicit Grid-Based Boundary Condition in XML Files

← Older revision		Revision as of 19:47, 1 March 2019
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	See [[Particle BC Shape Commands\|documentation]] for conversion of old commands to the new method.		See [[Particle BC Shape Commands\|documentation]] for conversion of old commands to the new method.

	== Explicit ~~Grid~~-Based Boundary Condition in XML Files ==		== Explicit Particle-Based Boundary Condition in XML Files ==

	An option in <tt>XML</tt> files is to explicitly set boundary conditions on particles without using shape functions. The format is		An option in <tt>XML</tt> files is to explicitly set boundary conditions on particles without using shape functions. The format is

Nairnj: /* Particle-Based Boundary Condition Commands */

2018-10-10T22:57:22Z

Particle-Based Boundary Condition Commands

← Older revision		Revision as of 22:57, 10 October 2018
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	The particles that will get boundary conditions are selected by defining one [[2D MPM Shape Commands\|2D shape]] (for 2D simulations) or one [[3D MPM Shape Commands\|3D shape]] (for 3D simulations). The shape can be a [[Nested Shapes\|nested shape]].		The particles that will get boundary conditions are selected by defining one [[2D MPM Shape Commands\|2D shape]] (for 2D simulations) or one [[3D MPM Shape Commands\|3D shape]] (for 3D simulations). The shape can be a [[Nested Shapes\|nested shape]].

	All particles within the one shape will be set to all provided [[Setting Forces and Fluxes\|conditions (load, traction, heat and/or ~~concentration~~ flux, damage)]].		All particles within the one shape will be set to all provided [[Setting Forces and Fluxes\|conditions (load, traction, heat, concentration, and/or pore pressure flux, damage)]].

	=== Deprecated Commands ===		=== Deprecated Commands ===

Nairnj at 23:27, 30 September 2018

2018-09-30T23:27:57Z

← Older revision		Revision as of 23:27, 30 September 2018
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	The particles that will get boundary conditions are selected by defining one [[2D MPM Shape Commands\|2D shape]] (for 2D simulations) or one [[3D MPM Shape Commands\|3D shape]] (for 3D simulations). The shape can be a [[Nested Shapes\|nested shape]].		The particles that will get boundary conditions are selected by defining one [[2D MPM Shape Commands\|2D shape]] (for 2D simulations) or one [[3D MPM Shape Commands\|3D shape]] (for 3D simulations). The shape can be a [[Nested Shapes\|nested shape]].

	All particles within the one shape will be set to all provided [[Setting Forces and Fluxes\|load, traction, heat ~~flux,~~ and/or concentration flux ~~conditions~~]].		All particles within the one shape will be set to all provided [[Setting Forces and Fluxes\|conditions (load, traction, heat and/or concentration flux, damage)]].

	=== Deprecated Commands ===		=== Deprecated Commands ===

Nairnj: /* Explicit Grid-Based Boundary Condition in XML Files */

2017-04-08T18:26:52Z

Explicit Grid-Based Boundary Condition in XML Files

← Older revision		Revision as of 18:26, 8 April 2017
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	</GridBCs>		</GridBCs>

	The <tt><BCShape></tt> blocks set boundary conditions as explained [[#Particle-Based Boundary Condition Commands\|above]]. The <tt><LoadBCs></tt> block lets you [[Explicit Particle Boundary Conditions\|explicitly list each ~~grid point~~]]. The explicit method is limited to load conditions, and is usually generated with other software. You can use both [[#Particle-Based Boundary Condition Commands\|<tt><BCShape></tt> blocks]] and a [[Explicit Particle Boundary Conditions\|<tt><LoadBCs></tt> block]] in the same input file.		The <tt><BCShape></tt> blocks set boundary conditions as explained [[#Particle-Based Boundary Condition Commands\|above]]. The <tt><LoadBCs></tt> block lets you [[Explicit Particle Boundary Conditions\|explicitly list each particle]]. The explicit method is limited to load conditions, and is usually generated with other software. You can use both [[#Particle-Based Boundary Condition Commands\|<tt><BCShape></tt> blocks]] and a [[Explicit Particle Boundary Conditions\|<tt><LoadBCs></tt> block]] in the same input file.

Nairnj: /* Explicit Grid-Based Boundary Condition in XML Files */

2017-04-08T18:26:30Z

Explicit Grid-Based Boundary Condition in XML Files

← Older revision		Revision as of 18:26, 8 April 2017
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	</GridBCs>		</GridBCs>

	The <tt><BCShape></tt> blocks set boundary conditions as explained [[#Particle-Based Boundary Condition Commands\|above]]. The <tt><LoadBCs></tt> block lets you [[~~xplicit~~ Particle Boundary Conditions\|explicitly list each grid point]]. The explicit method is limited to load conditions, and is usually generated with other software. You can use both [[#Particle-Based Boundary Condition Commands\|<tt><BCShape></tt> blocks]] and a [[Explicit Particle Boundary Conditions\|<tt><LoadBCs></tt> block]] in the same input file.		The <tt><BCShape></tt> blocks set boundary conditions as explained [[#Particle-Based Boundary Condition Commands\|above]]. The <tt><LoadBCs></tt> block lets you [[Explicit Particle Boundary Conditions\|explicitly list each grid point]]. The explicit method is limited to load conditions, and is usually generated with other software. You can use both [[#Particle-Based Boundary Condition Commands\|<tt><BCShape></tt> blocks]] and a [[Explicit Particle Boundary Conditions\|<tt><LoadBCs></tt> block]] in the same input file.

Nairnj: /* Explicit Grid-Based Boundary Condition in XML Files */

2017-04-08T18:26:16Z

Explicit Grid-Based Boundary Condition in XML Files

← Older revision		Revision as of 18:26, 8 April 2017
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	</GridBCs>		</GridBCs>

	The <tt><BCShape></tt> blocks set boundary conditions as explained [[#Particle-Based Boundary Condition Commands\|above]]. The <tt><LoadBCs></tt> block lets you [[xplicit Particle Boundary Conditions\|explicitly list each grid point]]. The explicit method is limited to load conditions, and is usually generated with other software. You can use both [[Particle ~~BC Shape~~ Commands\|~~shape commands~~]] and a [[Explicit Particle Boundary Conditions\|<tt><LoadBCs></tt> ~~section~~]] in the same input file.		The <tt><BCShape></tt> blocks set boundary conditions as explained [[#Particle-Based Boundary Condition Commands\|above]]. The <tt><LoadBCs></tt> block lets you [[xplicit Particle Boundary Conditions\|explicitly list each grid point]]. The explicit method is limited to load conditions, and is usually generated with other software. You can use both [[#Particle-Based Boundary Condition Commands\|<tt><BCShape></tt> blocks]] and a [[Explicit Particle Boundary Conditions\|<tt><LoadBCs></tt> block]] in the same input file.

Nairnj at 18:24, 8 April 2017

2017-04-08T18:24:52Z

← Older revision		Revision as of 18:24, 8 April 2017
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	Particle-based boundary conditions are used to apply conditions directly to particles for loads, tractions, heat fluxes, and concentration fluxes. Particle-based boundary conditions are typically applied to particles on the boundary of the object. Besides particle conditions, simulations can set [[Grid-Based Boundary Conditions]].		Particle-based boundary conditions are used to apply conditions directly to particles for loads, tractions, heat fluxes, and concentration fluxes. Particle-based boundary conditions are typically applied to particles on the boundary of the object. Besides particle conditions, simulations can set [[Grid-Based Boundary Conditions]].

	== Particle-Based Boundary Condition ~~in Scripted Files~~ ==		==Particle-Based Boundary Condition Commands ==

	In scripted files, all particle-based boundary conditions are created by a series of <tt>ParticleBC</tt> command blocks that select particles:		In scripted files, all particle-based boundary conditions are created by a series of <tt>ParticleBC</tt> command blocks that select particles:
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	</GridBCs>		</GridBCs>

	The <tt><BCShape></tt> blocks set boundary conditions as explained [[#Particle-Based Boundary Condition Commands\|above]]. The <tt><~~DisplacementBCs~~></tt> ~~blocks~~ lets you [[~~Explicit Grid~~ Boundary Conditions\|explicitly list each grid point]]. The explicit method is limited to velocity conditions, and is usually generated with other software. You can use both [[#Grid-Based Boundary Condition Commands\|<tt><BCShape></tt> commands]] and a <tt><DisplacementBCs></tt> block in the same input file.		The <tt><BCShape></tt> blocks set boundary conditions as explained [[#Particle-Based Boundary Condition Commands\|above]]. The <tt><LoadBCs></tt> block lets you [[xplicit Particle Boundary Conditions\|explicitly list each grid point]]. The explicit method is limited to load conditions, and is usually generated with other software. You can use both [[Particle BC Shape Commands\|shape commands]] and a [[Explicit Particle Boundary Conditions\|<tt><LoadBCs></tt> section]] in the same input file.
	~~== Particle-Based Boundary Condition in XML Files ==~~

	~~All particle-based boundary conditions must be set up within a single <ParticleBCs> element. The format is~~

	~~<ParticleBCs>~~
	~~(one or more particle BC shape commands)~~
	~~...~~
	~~<LoadBCs>~~
	~~(one or more explicit boundary conditions)~~
	~~</LoadBCs >~~
	~~</ParticleBCs>~~

	There are two ways to specify particle boundary conditions. The most common approach is to generate boundary conditions using one or more [[Particle BC Shape Commands\|shape commands]] to select particles and assign [[Setting Forces and Fluxes\|specified load, traction, heat flux, and or concentration flux conditions]] to those particles. The other way is to [[Explicit Particle Boundary Conditions\|explicitly list each particle condition]]. The explicit method is shown in the <tt><LoadBCs></tt> section above; it is limited to load conditions, and is usually generated with other software. You can use both [[Particle BC Shape Commands\|shape commands]] and a [[Explicit Particle Boundary Conditions\|<tt><LoadBCs></tt> section]] in the same input file.