LS-OPT offers several sampling schemes among which D-OPT, Space filling and Latin Hypercube are among the popular schemes. Using d3VIEW’s LS-OPT output parser, the three schemes were used to generate experiments for variables that ranged from a mininum of 0.0 and a maximum of 1.0. Following images compare the distribution of the samples for all…
A very rare and treasurable video of Dr. John Hallquist discussing about the problem that resulted in today’s LS-DYNA commercial software. You can read the full article here Computer History Museum
2015 LS-DYNA European conference will be held in Wurzburg, Germany. You can get more information from here .
The 13th LS-DYNA conference was the largest conference which was attended by over 650 attendees from around the world. You can find the papers from the conference here Following are some pictures from the hugely successful LS-DYNA conference recently held in Dearborn, Detroit. 1. Dr. John Hallquist, President and CEO of LSTC, presenting the latest…
A clever way to comment out blocks of keyword can be easily achieved using the *COMMENT keyword. Example: In the following example, the keyword *MAT_ELASTIC and all cards until the next keyword is commented out by simply adding a *COMMENT in front of it. *MAT_ELASTIC 1, 1.0e-9, 210.00, 0.3 *SOME_OTHER_KEYWORD …. …. to *COMMENT*MAT_ELASTIC 1,…
NLOC value (default = 0 ) allows you to specify an offset of the reference surface from the nodal surface. Image below illustrates the significance of this value.
Dr. Yun Huang and prepared an excellent package to get started in Frequency Domain and Fatigue Analysis in LS-DYNA.You can download the package by copying and pasting this link into a new browser window: http://ftp.lstc.com/anonymous/outgoing/huang/package/LS-DYNA_freq_domain_2014.01.16.zip (From FTP.LSTC.COM)
Cohesive material models are well suited for representing the behavior of structural and non-structural adhesives that is now increasingly used. To accommodate extreme dimensions of the element such as zero volume or near-zero volume, the timestep of the Cohesive element is based on the characteristic stiffness and mass of the element instead of the characteristic…
