ALGOR'S new material model provides enhanced stress-strain curve for more accurate FEA

Citation

(1999), "ALGOR'S new material model provides enhanced stress-strain curve for more accurate FEA", Aircraft Engineering and Aerospace Technology, Vol. 71 No. 3. https://doi.org/10.1108/aeat.1999.12771cab.024

ALGOR'S new material model provides enhanced stress-strain curve for more accurate FEA

ALGOR'S new material model provides enhanced stress-strain curve for more accurate FEA

Keywords Algor, Finite elements, Software

Algor, Inc., announce the availability of its general von Mises material model. The new nonlinear material model is an extension of Algor's existing von Mises material model and provides an enhanced stress-strain curve that claims to better represent the physical behavior of many materials beyond the yield point.

"This addition to our FEA software enables mechanical engineers to better analyze parts or systems with nonlinear behavior", said Michael L. Bussler, president and CEO of Pittsburgh-based Algor, Inc. "The new material model yields more accurate large strain results because it better captures the actual physical behavior of materials usually modeled with the traditional von Mises material model. It will lead to improved product design and engineering."

The general von Mises material model is used in nonlinear analysis for materials that are subjected to large strain and follow a stress-strain curve, such as metals and alloys. It can be applied to materials with kinematic and isotropic strain hardening for reversing or cyclic loading processes.

During FEA preparation, engineers simply input standard test data, including Young's modulus, the material's yield stress, ultimate/ breaking stress and ultimate/breaking elongation. Algor software uses the general von Mises material model to automatically calculate a "stress-strain curve fit" for the material. A user-defined option is available for engineers who wish to specify details of the curve rather than use the automatic option.

The general von Mises material model is included with Release 12 software, Algor's most comprehensive release since 1990. Release 12 software is available for PC workstations running Windows/NT, Windows 95 and 98.

Further details from Algor, Inc., Tel: +1 (412) 967 2700.