sfepy.terms.termsPiezo module¶

class sfepy.terms.termsPiezo.PiezoCouplingTerm(name, arg_str, integral, region, **kwargs)[source]¶

Piezoelectric coupling term. Can be evaluated.

Definition:

$\int_{\Omega} g_{kij}\ e_{ij}(\ul{v}) \nabla_k p \mbox{ , } \int_{\Omega} g_{kij}\ e_{ij}(\ul{u}) \nabla_k q$

Call signature:

dw_piezo_coupling	`(material, virtual, state)`
	`(material, state, virtual)`
	`(material, parameter_v, parameter_s)`

Arguments 1:	material : $g_{kij}$ virtual : $\ul{v}$ state : $p$
Arguments 2:	material : $g_{kij}$ state : $\ul{u}$ virtual : $q$
Arguments 3:	material : $g_{kij}$ parameter_v : $\ul{u}$ parameter_s : $p$

arg_shapes = {'state/grad': 1, 'state/div': 'D', 'material': 'D, S', 'virtual/grad': ('D', None), 'parameter_s': 1, 'parameter_v': 'D', 'virtual/div': (1, None)}¶

arg_types = (('material', 'virtual', 'state'), ('material', 'state', 'virtual'), ('material', 'parameter_v', 'parameter_s'))¶

get_eval_shape(mat, vvar, svar, mode=None, term_mode=None, diff_var=None, **kwargs)[source]¶

get_fargs(mat, vvar, svar, mode=None, term_mode=None, diff_var=None, **kwargs)[source]¶