iMechanica - number of back stresses
https://imechanica.org/taxonomy/term/5114
enABAQUS (6.8, 6.9 EF) - Effect of the number of back stresses
https://imechanica.org/node/8115
<div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>
Since ABAQUS 6.8, a new feature has been added to the combined hardening<br />
material input.
</p>
<p>
Let's assume a combined Kinematic and Isotropic hardening case, such as<br />
those happen in metals.
</p>
<p>
"Half cycle" uni-axial test results has been utilized to model the yield<br />
stress-plastic strain behavior as well as the Kinematic behavior of the<br />
metals.
</p>
<p>
In the same user interface, there is an option to choose the number of<br />
back stresses.
</p>
<p>
Is the number of 1 back stress is equivalen to the case of linear<br />
kinematic hardening (Ziegler's)?
</p>
<p>
Similarly, does it mean higher values for the number of back stresses<br />
trigger nonlinear kinematic hardening in the ABAQUS model? If so, does<br />
it mean using higher values for the "number of back stresses" option<br />
when half-cycle input data has been used, more closely predict the<br />
kinematic hardening behaviour of metals/models?
</p>
<p>
</p>
<p>
Thank you,
</p>
<p>
Ron.
</p>
</div></div></div><div class="field field-name-taxonomy-forums field-type-taxonomy-term-reference field-label-above"><div class="field-label">Forums: </div><div class="field-items"><div class="field-item even"><a href="/forum/109">Ask iMechanica</a></div></div></div><div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-above"><div class="field-label">Free Tags: </div><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/31">fracture</a></div><div class="field-item odd"><a href="/taxonomy/term/169">Plasticity</a></div><div class="field-item even"><a href="/taxonomy/term/3765">chaboche</a></div><div class="field-item odd"><a href="/taxonomy/term/4820">Kinematic Hardening</a></div><div class="field-item even"><a href="/taxonomy/term/5114">number of back stresses</a></div><div class="field-item odd"><a href="/taxonomy/term/5115">ultra low cycle fatigue</a></div><div class="field-item even"><a href="/taxonomy/term/5116">Ziegler</a></div><div class="field-item odd"><a href="/taxonomy/term/5117">Armstrong-Frederick</a></div><div class="field-item even"><a href="/taxonomy/term/5118">Lemaitre</a></div><div class="field-item odd"><a href="/taxonomy/term/5119">ABAQUS 6.9 EF</a></div><div class="field-item even"><a href="/taxonomy/term/5120">ABAQUS 6.8</a></div></div></div>Fri, 30 Apr 2010 22:38:17 +0000ron.dana8115 at https://imechanica.orghttps://imechanica.org/node/8115#commentshttps://imechanica.org/crss/node/8115ABAQUS (6.8, 6.9 EF) - Effect of the number of back stresses
https://imechanica.org/node/8114
<div class="field field-name-taxonomy-vocabulary-6 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/76">research</a></div></div></div><div class="field field-name-taxonomy-vocabulary-8 field-type-taxonomy-term-reference field-label-hidden"><div class="field-items"><div class="field-item even"><a href="/taxonomy/term/31">fracture</a></div><div class="field-item odd"><a href="/taxonomy/term/169">Plasticity</a></div><div class="field-item even"><a href="/taxonomy/term/3765">chaboche</a></div><div class="field-item odd"><a href="/taxonomy/term/4820">Kinematic Hardening</a></div><div class="field-item even"><a href="/taxonomy/term/5112">ABAQUS (6.8</a></div><div class="field-item odd"><a href="/taxonomy/term/5113">6.9 EF)</a></div><div class="field-item even"><a href="/taxonomy/term/5114">number of back stresses</a></div><div class="field-item odd"><a href="/taxonomy/term/5115">ultra low cycle fatigue</a></div><div class="field-item even"><a href="/taxonomy/term/5116">Ziegler</a></div><div class="field-item odd"><a href="/taxonomy/term/5117">Armstrong-Frederick</a></div><div class="field-item even"><a href="/taxonomy/term/5118">Lemaitre</a></div></div></div><div class="field field-name-body field-type-text-with-summary field-label-hidden"><div class="field-items"><div class="field-item even"><p>
Since ABAQUS 6.8, a new feature has been added to the combined hardening material input.
</p>
<p>
Let's assume a combined Kinematic and Isotropic hardening case, such as those happen in metals.
</p>
<p>
"Half cycle" uni-axial test results has been utilized to model the yield stress-plastic strain behavior as well as the Kinematic behavior of the metals.
</p>
<p>
In the same user interface, there is an option to choose the number of back stresses.
</p>
<p>
Is the number of 1 back stress is equivalen to the case of linear kinematic hardening (Ziegler's)?
</p>
<p>
Similarly, does it mean higher values for the number of back stresses trigger nonlinear kinematic hardening in the ABAQUS model? If so, does it mean using higher values for the "number of back stresses" option when half-cycle input data has been used, more closely predict the kinematic hardening behaviour of metals/models?
</p>
<p>
</p>
<p>
Thank you,
</p>
<p>
Ron.
</p>
</div></div></div>Fri, 30 Apr 2010 21:36:13 +0000ron.dana8114 at https://imechanica.orghttps://imechanica.org/node/8114#commentshttps://imechanica.org/crss/node/8114Error | iMechanica