Nonlinear Finite Element Modeling of Red Meranti Compressionan Angle to the Grain  

Oleh:

Suryoatmono, Bambang ; Pranata, Yosafat A.

Jenis: Article from Journal - ilmiah nasional - terakreditasi DIKTI
Dalam koleksi: Journal of Engineering and Technological Sciences vol. 45 no. 03 (2013), page 222-240.
Topik: compression; FEA; grain angle; Hill’s yield criterion; red meranti.
Fulltext: 681-2030-1-SM.pdf (1.32MB)

Isi artikel

In an orthotropic material on its mechanical properties. The aim of this research numerical simulation using the compression strength of angle to the grain ranging analysis were obtained from clear spe the numerical results, various cross grain specimens were tested under uniaxial compressive stress. It has been shown in this study that distortion energy of an compressive strength at proportional limit for cross grain specimens. Compa rison with the experimental results show 12° and 80° the FEA predict experimental results. Compared to compressive strength at a value, ranging from 13.2% to 30.5 incorporating Hill’s yield compressive strength at an angle to the grain. Keywords: compression; FEA 1 Introduction The compressive strength is the ultimate value that can be reached component fails due to compr load is an important parameter used in timber design, for example in the design of columns or posts. Similarly, plasticity obtained from compressive stress elastic analysis, for example analysis laminated column or a laminated post. Experimental tests and analytical research on the distortion energy criterion for timber uniaxial compression Sci., Vol. 45, No. 3, 2013, 222-240 evision April 5th, 2013, 2nd Revision May 2nd, 2013, Accepted for 2337-5779, DOI: 10.5614/j.eng.technol.sci.2013.45.3.2 Modeling of Red Meranti at an Angle to the Grain Pranata1 & Bambang Suryoatmono2 Department Department Email: yosafat.ap@gmail.com material, the grain angle has a significant influence was to perform a a nonlinear finite element analysis (FEA) to obtain the Red Meranti (shorea spp.) timber species at an ing from 12° to 80°. The material properties needed for the specimen tests. To investigate the validity of an FEA based on the orthotropic material can be used to obtain the Compaexperimental showed that for a cross grain angle between predicted the strength to be 9.4% to 33.6% lower than the using Hankinson’s formula to predict the cross grain angle, using the FEA always gave a lower 30.5%. Based on these results, an FEA criterion is a conservative method for predicting compressive strength at an angle to the grain.

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