000191275 001__ 191275
000191275 005__ 20190316235755.0
000191275 0247_ $$2doi$$a10.1260/0266-3511.28.3-4.197
000191275 037__ $$aARTICLE
000191275 245__ $$aMechanical form-Finding of the Timber Fabric Structures with Dynamic Relaxation Method
000191275 269__ $$a2013
000191275 260__ $$c2013
000191275 336__ $$aJournal Articles
000191275 520__ $$aTimber Fabric structures (TFS) initiate from a correspondence between textile principles and recent industrial developments in producing cross laminated timber panels. Several individual timber strips are interlaced according to a pattern and result in an innovative space structure. The obtained three-dimensional geometry can be regarded as the relaxed configuration of deformed panels under the imposed boundary conditions. We herein propose a form-finding procedure, which reproduces this deformed configuration as the steady state of a pseudo transient constrained dynamic problem. The corresponding nonlinear problem involves finite rotation regime and contact handling through the cross section and on both panel faces. To effectively deal with nonlinear constraints, a new modified dynamic relaxation method is herein used which combines elastic material behavior with a fictitious stiffness proportional damping into an equivalent fictitious viscous material model. The procedure is implemented as an ABAQUS/Explicit user subroutine VUMAT and the overall accuracy of the numerical results has been studied for a number of geometrically nonlinear shell benchmark problems. This numerical approach is then employed to simulate the assembly process for a Timber Fabric Module (TFM), an interlaced assembly of two timber strips. The simulated geometry for the deformed surfaces is then extracted and is compared with a 3D processed surface mesh obtained from scanning a built-in prototype with noncontact Laser scanner arm to validate the simulation procedure.
000191275 6531_ $$aDynamic Relaxation Method
000191275 6531_ $$aDynamic Explicit
000191275 6531_ $$aTimber Fabric Structures
000191275 6531_ $$aFinite Element Method
000191275 6531_ $$a3D Mesh processing
000191275 700__ $$g202015$$aNabaei, Seyed Sina$$0244863
000191275 700__ $$aBaverel, Olivier
000191275 700__ $$g156151$$aWeinand, Yves$$0243417
000191275 773__ $$q197-214$$k3-4$$j28$$tInternational Journal of Space Structures
000191275 8560_ $$falain.borel@epfl.ch
000191275 8564_ $$uhttps://infoscience.epfl.ch/record/191275/files/08-IJSS_No10_final.pdf$$zn/a$$s6433928$$yn/a
000191275 909C0 $$xU10236$$0252195$$pIBOIS
000191275 909CO $$ooai:infoscience.tind.io:191275$$qGLOBAL_SET$$particle$$pENAC
000191275 917Z8 $$x202015
000191275 937__ $$aEPFL-ARTICLE-191275
000191275 973__ $$rREVIEWED$$sPUBLISHED$$aEPFL
000191275 980__ $$aARTICLE