sfepy.terms.terms_contact module¶

class sfepy.terms.terms_contact.ContactInfo(region, integral, geo, state)[source]¶

Various contact-related data of contact terms.

update(xx)[source]¶: A dict-like update for Struct attributes.

class sfepy.terms.terms_contact.ContactTerm(*args, **kwargs)[source]¶

Contact term with a penalty function.

The penalty function is defined as $\varepsilon_N \langle g_N(\ul{u}) \rangle$ , where $\varepsilon_N$ is the normal penalty parameter and $\langle g_N(\ul{u}) \rangle$ are the Macaulay’s brackets of the gap function $g_N(\ul{u})$ .

This term has a dynamic connectivity of DOFs in its region.

Definition

$\int_{\Gamma_{c}} \varepsilon_N \langle g_N(\ul{u}) \rangle \ul{n} \ul{v}$

Call signature

dw_contact

(material, virtual, state)

Arguments

material : $\varepsilon_N$
virtual : $\ul{v}$
state : $\ul{u}$

arg_shapes = {'material': '.: 1', 'state': 'D', 'virtual': ('D', 'state')}¶

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

call_function(out, fargs)[source]¶

eval_real(shape, fargs, mode='eval', term_mode=None, diff_var=None, **kwargs)[source]¶

static function(out, fun, *args)[source]¶

static function_weak(out, out_cc)[source]¶

get_contact_info(geo, state, init_gps=False)[source]¶

get_eval_shape(epss, virtual, state, mode=None, term_mode=None, diff_var=None, **kwargs)[source]¶

get_fargs(epss, virtual, state, mode=None, term_mode=None, diff_var=None, **kwargs)[source]¶

static integrate(out, val_qp, geo, fmode)[source]¶

integration = 'surface'¶

name = 'dw_contact'¶