doc:user:elements:shells:shell
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doc:user:elements:shells:shell [2013/07/11 18:08] – joris | doc:user:elements:shells:shell [2016/03/30 15:23] (current) – external edit 127.0.0.1 | ||
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+ | ====== Shells====== | ||
+ | ===== Materials ===== | ||
+ | |||
+ | The definition of shell finite elements follows the same logic as volume elements. First, a material is defined: | ||
+ | |||
+ | materialno = materialset.define (number, type) | ||
+ | materialno = materialset(number) | ||
+ | materialno.put(param, | ||
+ | materialno.depend(param, | ||
+ | ... | ||
+ | |||
+ | |'' | ||
+ | |'' | ||
+ | |'' | ||
+ | |'' | ||
+ | |'' | ||
+ | |'' | ||
+ | |||
+ | |||
+ | ==== LinearShellMaterial ==== | ||
+ | |||
+ | === Description === | ||
+ | |||
+ | Simple linear elastic law (small strains and displacements). | ||
+ | |||
+ | === Parameters === | ||
+ | ^ | ||
+ | | Density | ||
+ | | Young modulus | ||
+ | | Poisson ratio | ||
+ | |||
+ | ===== Elements ===== | ||
+ | |||
+ | After defining the [[# | ||
+ | |||
+ | prp = ElementProperties(typeEl) | ||
+ | prp.put(param1, | ||
+ | prp.depend(param1, | ||
+ | ... | ||
+ | |||
+ | where | ||
+ | |||
+ | |'' | ||
+ | |'' | ||
+ | |'' | ||
+ | |'' | ||
+ | |'' | ||
+ | |||
+ | ==== LinearShellFirstDegreeElement ==== | ||
+ | |||
+ | Linear shell elements (small strains small displacements). 4-nodes linear quadrangles. | ||
+ | |||
+ | By default, stresses are integrated of '' | ||
+ | |||
+ | A thickness must be defined, see table below. | ||
+ | |||
+ | |||
+ | ==== LinearShellSecondDegreeElement ==== | ||
+ | |||
+ | Same as '' | ||
+ | |||
+ | The membrane part can be integrated over '' | ||
+ | The bending part can be integrated over '' | ||
+ | |||
+ | |||
+ | |||
+ | ==== LinearShellNineNodeSecondDegreeElement ==== | ||
+ | |||
+ | Same as '' | ||
+ | |||
+ | The membrane part can be integrated over '' | ||
+ | The bending part can be integrated over '' | ||
+ | |||
+ | |||
+ | ==== LinearShellSixteenNodeThirdDegreeElement ==== | ||
+ | |||
+ | Same as '' | ||
+ | |||
+ | The membrane part can be integrated over '' | ||
+ | The bending part can be integrated over '' | ||
+ | |||
+ | |||
+ | === Parameters === | ||
+ | ^ | ||
+ | | '' | ||
+ | | '' | ||
+ | | '' | ||
+ | | '' | ||
+ | | '' | ||
+ | | '' | ||
+ | |||
+ | ===== Interactions ===== | ||
+ | |||
+ | Shell elements are then generated as [[doc: | ||
+ | |||
+ | app = FieldApplicator(no) | ||
+ | app.push(gObject1) | ||
+ | app.push(gObject2) | ||
+ | ... | ||
+ | app.addProperty(prp) | ||
+ | interactionset.add(app) | ||
+ | |||
+ | or | ||
+ | |||
+ | app = interactionset.add(FieldApplicator(no)) #add returns a reference | ||
+ | app.push(gObject1) | ||
+ | app.push(gObject2) | ||
+ | ... | ||
+ | app.addProperty(prp) | ||
+ | |||
+ | |||
+ | where | ||
+ | | '' | ||
+ | |'' | ||
+ | | '' |
doc/user/elements/shells/shell.txt · Last modified: 2016/03/30 15:23 by 127.0.0.1