000018541 001__ 18541
000018541 005__ 20170118182227.0
000018541 04107 $$aeng
000018541 046__ $$k2017-01-09
000018541 100__ $$aWhyte, Catherine
000018541 24500 $$aPerformance of Numerical Integrators in Thermomechanical Hybrid Simulation

000018541 24630 $$n16.$$pProceedings of the 16th World Conference on Earthquake Engineering
000018541 260__ $$b
000018541 506__ $$arestricted
000018541 520__ $$2eng$$aMechanics of structural behavior in fire and fire-resistant design of structures are based on data from standard fire tests of single structural components. Experimental qualification of structures in fire must account for interactions between elements within the overall structural assembly in order to provide benchmark tests to verify and validate modeling tools and design provisions, particularly those aiming to implement modern performance-based evaluation approaches and design standards. This is the motivation to extend the hybrid simulation method, which has been deeply investigated in the seismic domain, to structures-in-fire testing. By linking numerical and physical substructures, hybrid simulation offers a flexible, cost-effective approach. However, the implementation of thermomechanical hybrid simulation (TMHS) tests must be carefully designed to properly account for rate-dependent creep effects that become significant at high temperatures. Purely mechanical hybrid simulations are commonly performed at extended time scales. Such an approach is not appropriate in the presence of creep and other loading rate effects: instead, thermomechanical simulation should, ideally, be conducted in real time. However, real-time testing is not always possible due to constraints of the laboratory equipment. In such cases, the testing time scale must be accurately tuned to minimize experimental approximation. The optimal selection of the time integration scale and the numerical integration scheme in TMHS are presented herein. Furthermore, the thermalTruss experimental element implemented in the OpenFresco hybrid simulation middleware is presented, which provides the ability to fully simulate a TMHS test prior to experimentally substructuring the physical specimen in the laboratory.

000018541 540__ $$aText je chráněný podle autorského zákona č. 121/2000 Sb.
000018541 653__ $$ahybrid simulation; thermomechanical; time integration

000018541 7112_ $$a16th World Conference on Earthquake Engineering$$cSantiago (CL)$$d2017-01-09 / 2017-01-13$$gWCEE16
000018541 720__ $$aWhyte, Catherine$$iMackie, Kevin$$iAbbiati, Giuseppe$$iStojadinovic, Bozidar
000018541 8560_ $$ffischerc@itam.cas.cz
000018541 8564_ $$s4114268$$uhttps://invenio.itam.cas.cz/record/18541/files/1675.pdf$$yOriginal version of the author's contribution as presented on USB, paper 1675.
000018541 962__ $$r16048
000018541 980__ $$aPAPER