nodal area calculation reverted to taking norm of force

Drucker-Prager law for plastic material implemented

added updateInternalParameters function to Drucker-Prager class

Bug fixed in Drucker-Prager for converting voigt to Matrix form

Merge branch 'features/contact' of ssh://c3science.ch/diffusion/AKAPRIV/akantu…

contact search moved from predictor to assembleResidual

Bug fixed : no of boundary elements were wrongly accounted for

added max iteration criteria to contact detector for natural projection

added function to define new IntegrationScheme

tangential traction added for dumping

added a max iteration criteria to inverseMap function

cleaning a bit

parameter to determine extension of a master element added

extra comments added to clarify some algorithms

Bug Fixed : detection to check if point is inside or outside a master surface

boundary element function edited

change in nodal area computation/current configuration considered

matrix-matrix multiplications in resolutions corrected

added tolerance criteria for natural projection

gap and nodal area computation corrected

readded intialization of projection arrays

added need_to_reassemble as default option

resolutions computation chnages to vector-vector multiplication

quadratic penalty formulation added/ forces implemented

enum class for contact state added

Bug Fix : contact force were added twice due to ghost/not_ghost

normal and stick modulii implemented for penalty

corrected slip tangential traction

Bug Fix : convergence normalized criteria was zero for solution type

conflicts with master resolved

resizing stick slip array in search function

changes in dumper functions in accordance to master

Bug fixed : multiple cohesive materials in extrinsic insertion

contact coupler modified

commented duplicate functions already in geometry utils

friction for large sliding is added in penalty resolution

working on contact coheisve coupler

contact mechanics model : previous state/explicit dynamic default solver

added before/after solve step to resolution

added functionality to take userdefined values in allocNodalField in model

contact element class cleaned/ all necessary functions moed to model

added minimum function to sparse matrix aij

Conflict resolved with master

example added for contact mechanics

modifications to compile with RelWithDeBugInfo cmake option

few modifications to clean the code

Bug fixed : 2nd shape derivatives for quad 4 added

commenting unused variables

python interface modified to be compatible with contact model

conflicts with master resolved

class contact element modified/ stiffness matrix re computation

started working on parallelization of contact detector

added geometry utils to ease friciton calculation

Bug fixed : in radius calculation for segement element

conflict with master resolved

jacobian for new elements added is wrong/update problem

changed contact detector to get correct master element index

Bug fixed : to consider boundary elements in initMeshFacets

python interface for contact/coupler/material selector

bug fixed : compute jacobian in gauss integrator

chenged in resolution.cc for nodegroup

coupling between solid cohesive and contact mechanics started

changed fillNodestoElement in mesh/ use meshfacets for coupling

conflicts resolved

chmaged contact detector and element class for friciton traction

previous projection needs to be fixed in contact element class for friction to…

contact code adapted for explicit dynamics/ lot of things have been changed in…

friction implementation added/ working on tests

fixed stress/grad_u dumping in coupler

working commit before rewiring/ added working tests

removed dumping code in predictor/corrector of coupler class

cleaning the resolution code in contact mechanics model/definitely need a data…

assembly of friction stiffness/ might need a proper structure for einsum

resolved conflict in contact mechanics model

Merge branch 'features/contact' of ssh://c4science.ch/diffusion/AKAPRIV/akantu…

integrated dof changes to coupler class and started with friction enforcement

added 2nd derivative for t3, q4 elements

started working on coupler class

implicit contact formulation added

static implicit working

Merge branch 'master' into features/contact

conflict fixed with master

changes in resolution class

cleaning

dumper fixed, added area multiplication in contact force

vector mathematics for resolution added

contact mechanics explicit working/ need to fix dumper in coupling with solid

contact resolution started

dumper added/ projection modification in progress

changed detetcion to node based

made contact model inherit from model class

tests for contact detection added/2d working

Merge branch 'master' into features/contact

contact detector capable of orthogonal projection/ needs test

contact detector class modified to take current positions

bounding box and grid construction added

removed couplers from contact branch

working

conflict resolved in aka_common

contact detecttion started