Sample MPM Input Command File - Revision history

Nairnj: /* Trial Run with XML MPM Input */

2014-01-15T20:30:25Z

Trial Run with XML MPM Input

← Older revision		Revision as of 20:30, 15 January 2014
Line 140:		Line 140:
	./NairnMPM XML_Input/TwoDisks.fmcmd > TwoDisks.mpm		./NairnMPM XML_Input/TwoDisks.fmcmd > TwoDisks.mpm

	The first command <tt>cd</tt>'s to the <tt>nairn-mpm-fea</tt> project folder with the executable and a folder with an example <tt>XML</tt> input file <tt>TwoDisks.fmcmd</tt>. The second command runs the MPM calculations. These sample calculations are for two disks approach each other, impacting, and then bouncing back. The outfile file <tt>TwoDisks.mpm</tt> will have the plain text output results and archived results at various times will be in a <tt>Two_Disks_Results</tt> folder. To verify the results, open the new <tt>Cantilever.fea</tt> in your visualization tools (''e.g.'', [[NairnFEAMPM]] or [[NairnFEAMPMViz]]). A sample plot of stresses during impact given [[#Trial Run with Scripted MPM Input\|above]].		The first command <tt>cd</tt>'s to the <tt>nairn-mpm-fea</tt> project folder with the executable and a folder with an example <tt>XML</tt> input file <tt>TwoDisks.fmcmd</tt>. The second command runs the MPM calculations. These sample calculations are for two disks approach each other, impacting, and then bouncing back. The outfile file <tt>TwoDisks.mpm</tt> will have the plain text output results and archived results at various times will be in a <tt>Two_Disks_Results</tt> folder. To verify the results, open the new <tt>Cantilever.fea</tt> in your visualization tools (''e.g.'', [[NairnFEAMPM]] or [[NairnFEAMPMViz]]). A sample plot of stresses during impact is given [[#Trial Run with Scripted MPM Input\|above]].

Nairnj: /* Trial Run with Scripted MPM Input */

2014-01-15T20:29:40Z

Trial Run with Scripted MPM Input

← Older revision		Revision as of 20:29, 15 January 2014
Line 63:		Line 63:
	These scripted commands can be tried out by copying all the commands and pasting them into an empty window in [[NairnFEAMPM]] or in [[NairnFEAMPMViz]]. When done, choose the "Analyze → Run FEA/MPM Analysis" menu command. The results will stream to a window. When they are done, you can visualize the results. These sample calculations are for two disks approach each other, impacting, and the bouncing back. The image below shows plot of stress in the <tt>x</tt>-direction in the middle of the impact event:		These scripted commands can be tried out by copying all the commands and pasting them into an empty window in [[NairnFEAMPM]] or in [[NairnFEAMPMViz]]. When done, choose the "Analyze → Run FEA/MPM Analysis" menu command. The results will stream to a window. When they are done, you can visualize the results. These sample calculations are for two disks approach each other, impacting, and the bouncing back. The image below shows plot of stress in the <tt>x</tt>-direction in the middle of the impact event:

	[[File:~~Beam~~.jpg\|center]]		[[File:MPMImpact.jpg\|center]]

	== XML MPM Input Command File ==		== XML MPM Input Command File ==

Nairnj: /* Scripted MPM Input Command File */

2014-01-15T19:41:51Z

Scripted MPM Input Command File

← Older revision		Revision as of 19:41, 15 January 2014
Line 24:		Line 24:
	#height=24 ! semi grid size y direction		#height=24 ! semi grid size y direction
	#thickness=1 ! Thickness in mm		#thickness=1 ! Thickness in mm
	#vel=2500 ! velocity		#vel=2500 ! velocity
			#modulus=1.0 ! modulus in MPa
			#nu=0.33 ! Poisson's ratio
			#rho=1.5 ! Density

	! ******** Materials Section ********		! ******** Materials Section ********
	Material "Left","Polymer","Isotropic"		Material "Left","Polymer","Isotropic"
	E ~~1.0~~		E #modulus
	nu ~~.33~~		nu #nu
	a 60		a 60
	rho ~~1.5~~		rho #rho
	Done		Done

	Material "Right","Polymer","Isotropic"		Material "Right","Polymer","Isotropic"
	E ~~1.0~~		E #modulus
	nu ~~.33~~		nu #nu
	a 60		a 60
	rho ~~1.5~~		rho #rho
	Done		Done

Nairnj: /* Scripted MPM Input Command File */

2014-01-15T19:38:05Z

Scripted MPM Input Command File

← Older revision		Revision as of 19:38, 15 January 2014
Line 28:		Line 28:
	! ******** Materials Section ********		! ******** Materials Section ********
	Material "Left","Polymer","Isotropic"		Material "Left","Polymer","Isotropic"
	E 1,0		E 1.0
	nu .33		nu .33
	a 60		a 60
Line 35:		Line 35:

	Material "Right","Polymer","Isotropic"		Material "Right","Polymer","Isotropic"
	E 1,0		E 1.0
	nu .33		nu .33
	a 60		a 60

Nairnj at 05:23, 15 January 2014

2014-01-15T05:23:47Z

← Older revision		Revision as of 05:23, 15 January 2014
Line 3:		Line 3:
	== Scripted MPM Input Command File ==		== Scripted MPM Input Command File ==

	<pre>~~TBD~~</pre>		<pre>! ******** Preamble Section ********
			Title "Two Disk Impact"
			Name "John Nairn"

			! Header
			Header
			2D simulation of two identical disks colliding in a head-on impact
			EndHeader

			! Method
			Analysis "Plane Stress MPM"
			MPMMethod USAVG,GIMP
			Archive "Two_Disks_Results/USAVG."
			ArchiveTime .5
			MaximumTime 20

			! ******** Parameters Section ********
			#cell=2 ! cell size (square cells)
			#width=52 ! semi grid size x direction
			#height=24 ! semi grid size y direction
			#thickness=1 ! Thickness in mm
			#vel=2500 ! velocity

			! ******** Materials Section ********
			Material "Left","Polymer","Isotropic"
			E 1,0
			nu .33
			a 60
			rho 1.5
			Done

			Material "Right","Polymer","Isotropic"
			E 1,0
			nu .33
			a 60
			rho 1.5
			Done

			! ******** Grid Section ********
			GridHoriz 2*#width/#cell,-#width,-1,#width
			GridVert 2*#height/#cell,-#height,-1,#height
			GridThickness #thickness
			GridRect -#width,#width,-#height,#height

			! ******** Material Points Section ********
			Region "Left",#vel,0,#thickness
			Oval -45,-15,-15,15
			EndRegion

			Region "Right",-#vel,0,#thickness
			Oval 15,45,-15,15
			EndRegion</pre>

	==== Trial Run with Scripted MPM Input ====		==== Trial Run with Scripted MPM Input ====

Nairnj: Nairnj moved page Sample MPM Input Command FIle to Sample MPM Input Command File without leaving a redirect

2014-01-15T05:07:27Z

Nairnj moved page Sample MPM Input Command FIle to Sample MPM Input Command File without leaving a redirect

← Older revision	Revision as of 05:07, 15 January 2014
(No difference)

Nairnj: /* Trial Run with XML MPM Input */

2014-01-15T05:06:52Z

Trial Run with XML MPM Input

← Older revision		Revision as of 05:06, 15 January 2014
Line 81:		Line 81:
	==== Trial Run with XML MPM Input ====		==== Trial Run with XML MPM Input ====

	These <tt>XML</tt> commands can be tried in [[NairnFEAMPM]] or [[NairnFEAMPMViz]] as described [[#Trial Run with Scripted MPM Input\|above]]. Alternatively, they can be used to try out [[Options for Running Calculations#~~Command-Line Execution~~\|command line execution]]. To do a command-line trial run, first compile [[NairnMPM]] using the [[Compiling in Linux\|command-line method]], which will install the executable in the <tt>NairnMPM/input</tt> folder. Next, run the following commands:		These <tt>XML</tt> commands can be tried in [[NairnFEAMPM]] or [[NairnFEAMPMViz]] as described [[#Trial Run with Scripted MPM Input\|above]]. Alternatively, they can be used to try out [[Options for Running Calculations#Running NairnMPM\|command line execution]]. To do a command-line trial run, first compile [[NairnMPM]] using the [[Compiling in Linux\|command-line method]], which will install the executable in the <tt>NairnMPM/input</tt> folder. Next, run the following commands:

	cd nairn-mpm-fea/NairnMPM/input		cd nairn-mpm-fea/NairnMPM/input

Nairnj: /* Trial Run with XML MPM Input */

2014-01-15T05:05:35Z

Trial Run with XML MPM Input

← Older revision		Revision as of 05:05, 15 January 2014
Line 81:		Line 81:
	==== Trial Run with XML MPM Input ====		==== Trial Run with XML MPM Input ====

	These <tt>XML</tt> commands can be tried in [[NairnFEAMPM]] or [[NairnFEAMPMViz]] as described [[#Trial Run with Scripted MPM Input\|above]]. Alternatively, they can be used to try out [[Options for Running Calculations#Command-Line Execution\|command line execution]]. To do a command-line trial run, first compile [[NairnMPM]] using the [[Compiling in Linux\|command-line method]], which will ~~installed~~ the executable in the <tt>NairnMPM/input</tt> folder. Next, run the following commands:		These <tt>XML</tt> commands can be tried in [[NairnFEAMPM]] or [[NairnFEAMPMViz]] as described [[#Trial Run with Scripted MPM Input\|above]]. Alternatively, they can be used to try out [[Options for Running Calculations#Command-Line Execution\|command line execution]]. To do a command-line trial run, first compile [[NairnMPM]] using the [[Compiling in Linux\|command-line method]], which will install the executable in the <tt>NairnMPM/input</tt> folder. Next, run the following commands:

	cd nairn-mpm-fea/NairnMPM/input		cd nairn-mpm-fea/NairnMPM/input

Nairnj: Created page with "The two sample MPM input command files given below will run an analysis of two disks impacting each other == Scripted MPM Input Command File ==

TBD

==== Trial R..."

2014-01-15T05:04:03Z

Created page with "The two sample MPM input command files given below will run an analysis of two disks impacting each other == Scripted MPM Input Command File == <pre>TBD</pre> ==== Trial R..."

New page

The two sample MPM input command files given below will run an analysis of two disks impacting each other

== Scripted MPM Input Command File ==

<pre>TBD</pre>

==== Trial Run with Scripted MPM Input ====

These scripted commands can be tried out by copying all the commands and pasting them into an empty window in [[NairnFEAMPM]] or in [[NairnFEAMPMViz]]. When done, choose the "Analyze → Run FEA/MPM Analysis" menu command. The results will stream to a window. When they are done, you can visualize the results. These sample calculations are for two disks approach each other, impacting, and the bouncing back. The image below shows plot of stress in the <tt>x</tt>-direction in the middle of the impact event:

[[File:Beam.jpg|center]]

== XML MPM Input Command File ==

<pre><?xml version='1.0'?>
<!DOCTYPE JANFEAInput SYSTEM "/Users/nairnj/Programming/Cocoa_Projects/nairn-mpm-fea/NairnMPM/input/NairnMPM.dtd"
[
<!ENTITY modulus "1.0"> 
<!ENTITY nu "0.33"> 
<!ENTITY rho "1.5"> 
<!ENTITY vel "2500"> 
<!ENTITY maxtime "20"> 
<!ENTITY atime ".5"> 
<!ENTITY cs "2"> 
<!ENTITY hmax "52"> 
<!ENTITY vmax "24"> 
]>
<JANFEAInput version='3'>

<Header>
<Description>
2D simulation of two identical disks colliding in a head-on impact
</Description>
<Analysis>10</Analysis>
</Header>

<MPMHeader>
<MaxTime units="ms">&maxtime;</MaxTime>
<ArchiveTime units="ms">&atime;</ArchiveTime>
<ArchiveRoot>Two_Disks_Results/USAVG.</ArchiveRoot>
<MPMArchiveOrder>iYYYYNNNNNNNNNNNNY</MPMArchiveOrder>
<GlobalArchiveTime units="ms">&atime;</GlobalArchiveTime>
<GlobalArchive type="velx" matname="Disk 1"/>
<GlobalArchive type="Kinetic Energy"/>
<GIMP/>
</MPMHeader>

<Mesh output="file">
<Grid xmin="-&hmax;" xmax="&hmax;" ymin="-&vmax;" ymax="&vmax;">
<Horiz cellsize="&cs;" symmin="-&hmax;" symmax="&hmax;"/>
<Vert cellsize="&cs;" symmin="-&vmax;" symmax="&vmax;"/>
</Grid>
</Mesh>

<MaterialPoints>
<Body matname="Disk 1" angle="0" thick="1" vx="&vel;" vy="0">
<Oval xmin="-45" xmax="-15" ymin="-15" ymax="15"/>
</Body>
<Body matname="Disk 2" angle="0" thick="1" vx="-&vel;" vy="0">
<Oval xmin="15" xmax="45" ymin="-15" ymax="15"/>
</Body>
</MaterialPoints>

<Material Type="1" Name="Disk 1">
<rho>ρ</rho>
<E>&modulus;</E>
<nu>ν</nu>
<alpha>60</alpha>
</Material>

<Material Type="1" Name="Disk 2">
<rho>ρ</rho>
<E>&modulus;</E>
<nu>ν</nu>
<alpha>60</alpha>
</Material>

</JANFEAInput>
</pre>

==== Trial Run with XML MPM Input ====

These <tt>XML</tt> commands can be tried in [[NairnFEAMPM]] or [[NairnFEAMPMViz]] as described [[#Trial Run with Scripted MPM Input|above]]. Alternatively, they can be used to try out [[Options for Running Calculations#Command-Line Execution|command line execution]]. To do a command-line trial run, first compile [[NairnMPM]] using the [[Compiling in Linux|command-line method]], which will installed the executable in the <tt>NairnMPM/input</tt> folder. Next, run the following commands:

cd nairn-mpm-fea/NairnMPM/input
./NairnMPM XML_Input/TwoDisks.fmcmd > TwoDisks.mpm

The first command <tt>cd</tt>'s to the <tt>nairn-mpm-fea</tt> project folder with the executable and a folder with an example <tt>XML</tt> input file <tt>TwoDisks.fmcmd</tt>. The second command runs the MPM calculations. These sample calculations are for two disks approach each other, impacting, and then bouncing back. The outfile file <tt>TwoDisks.mpm</tt> will have the plain text output results and archived results at various times will be in a <tt>Two_Disks_Results</tt> folder. To verify the results, open the new <tt>Cantilever.fea</tt> in your visualization tools (''e.g.'', [[NairnFEAMPM]] or [[NairnFEAMPMViz]]). A sample plot of stresses during impact given [[#Trial Run with Scripted MPM Input|above]].