MATERIAL DAMPING IN DYNAMIC ANALYSIS OF STRUCTURES

• Main Authors: Мaria S. Barabash, Anatol V. Pikul
• Format: Article
• Language: English
• Published: Publishing House ASV 2017-09-01
• Series: International Journal for Computational Civil and Structural Engineering
• Subjects: dynamic load; numerical modelling; computer modelling; material damping; LIRA-SAPR
• Online Access: http://ijccse.iasv.ru/article/view/44

Abstract: The paper deals with numerical research as to how material damping influences the load-bearing structures in dynamic loads. Certain technique is suggested for modelling behaviour of structure in time history analysis with account of material damping. A set of motion equations is solved according to Newmark method as matrix. Physical meaning of material damping is described. The authors suggest the technique for account of different materials in parts of structure. The following example is provided: analysis of structure together with soil and with account of earthquake loads. Analysis results are compared (with and without account of material damping). Significant influence of damping on the stress-strain state of the structure is confirmed.