## You are here

# 2D plasticity

## Forward vs backward Euler for return algorithms

Sat, 2017-03-25 18:50 - Biswajit BanerjeeIn Part 5 of my series on return mapping for plane stress plasticity, I claim that the obsession with backward Euler is not justified if accuracy is important. See http://www.parresianz.com/mechanics/plasticity/algorithm/plane-stress-drucker-prager-return-part-5/.

Let me know if you disagree and why.

-- Biswajit

- Read more about Forward vs backward Euler for return algorithms
- Biswajit Banerjee's blog
- Log in or register to post comments
- 398 reads

## More on plane stress Drucker-Prager plasticity

Fri, 2017-03-24 16:50 - Biswajit BanerjeeParts 3 and 4 of the series on plane stress Drucker-Prager plasticity are now online. More to come soon.

Check out

http://www.parresianz.com/mechanics/plasticity/algorithm/plane-stress-drucker-prager-return-part-3/

and

- Read more about More on plane stress Drucker-Prager plasticity
- Biswajit Banerjee's blog
- Log in or register to post comments
- 587 reads

## Plane stress Drucker-Prager plasticity (part 2)

Sat, 2017-03-04 15:15 - Biswajit BanerjeePart 2 of plane stress Drucker-Prager return algorithm: http://www.parresianz.com/mechanics/plasticity/algorithm/plane-stress-dr...

-- Biswajit

- Read more about Plane stress Drucker-Prager plasticity (part 2)
- Biswajit Banerjee's blog
- Log in or register to post comments
- 446 reads

## Plane stress Drucker-Prager plasticity (part 1)

Fri, 2017-03-03 15:16 - Biswajit BanerjeeNew blog post: Plane stress Drucker-Prager plasticity (part 1): http://www.parresianz.com/mechanics/plasticity/algorithm/plane-stress-dr...

-- Biswajit

- Read more about Plane stress Drucker-Prager plasticity (part 1)
- Biswajit Banerjee's blog
- Log in or register to post comments
- 429 reads

## How to use non-dimensional form in open source codes instead of Units

Fri, 2016-10-07 00:15 - crg123I am using an open source FEM platform, which requires you to convert your equation system to non-dimensional form. So, there are no units specified for the parameters in the problem. If you use compatible input units, you should expect the output in matching unit - just like one would do in a normal python or C++ code for solving physical problems. I have an elasto-plastic dynamic problem to solve, and these are the parameters for the Drucker-Prager Soil Model for soft clay.

E = 5000000; // Young's Modulus in N/m^2 or Pa

- Read more about How to use non-dimensional form in open source codes instead of Units
- Log in or register to post comments
- 391 reads

## How to use non-dimensional form in open source codes instead of Units

Fri, 2016-10-07 00:09 - crg123I am using an open source FEM platform, which requires you to convert your equation system to non-dimensional form. So, there are no units specified for the parameters in the problem. If you use compatible input units, you should expect the output in matching unit - just like one would do in a normal python or C++ code for solving physical problems. I have an elasto-plastic dynamic problem to solve, and these are the parameters for the Drucker-Prager Soil Model for soft clay.

E = 5000000; // Young's Modulus in N/m^2 or Pa

- Read more about How to use non-dimensional form in open source codes instead of Units
- crg123's blog
- Log in or register to post comments
- 436 reads

## Recent comments