Structural performance of metallic sandwich beams with hollow truss cores
The article focuses on the structural performance of sandwich beams with hollow truss lattice cores made from a ductile stainless steel. The trusses are arranged in an orthogonal (cross-ply) configuration, in either ±45° (diamond) or 0°/90° (square) orientations with respect to the face sheets. The...
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| Veröffentlicht in: | Acta materialia 2006-12, Vol.54 (20), p.5509-5518 |
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| container_issue | 20 |
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| container_title | Acta materialia |
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| creator | Rathbun, H.J. Zok, F.W. Waltner, S.A. Mercer, C. Evans, A.G. Queheillalt, D.T. Wadley, H.N.G. |
| description | The article focuses on the structural performance of sandwich beams with hollow truss lattice cores made from a ductile stainless steel. The trusses are arranged in an orthogonal (cross-ply) configuration, in either ±45° (diamond) or 0°/90° (square) orientations with respect to the face sheets. The responses in shear, tension and compression, as well as simply supported and fully clamped bending, are measured for specimens with both core orientations. While the two cores perform equally well in compression, the diamond orientation exhibits higher shear strength but lower stretch resistance. For bend-dominated loadings of the sandwich beams, the core in the diamond orientation is preferred because of its higher shear strength. For stretch-dominated loadings encountered in large-displacement, fully clamped bending, the square orientation is superior. Models of core and beam yielding are used to rationalize these observations. Optimizations are then performed to identify strong lightweight designs and to enable performance comparisons with other sandwich structures. |
| doi_str_mv | 10.1016/j.actamat.2006.07.016 |
| format | Article |
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The trusses are arranged in an orthogonal (cross-ply) configuration, in either ±45° (diamond) or 0°/90° (square) orientations with respect to the face sheets. The responses in shear, tension and compression, as well as simply supported and fully clamped bending, are measured for specimens with both core orientations. While the two cores perform equally well in compression, the diamond orientation exhibits higher shear strength but lower stretch resistance. For bend-dominated loadings of the sandwich beams, the core in the diamond orientation is preferred because of its higher shear strength. For stretch-dominated loadings encountered in large-displacement, fully clamped bending, the square orientation is superior. Models of core and beam yielding are used to rationalize these observations. 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The trusses are arranged in an orthogonal (cross-ply) configuration, in either ±45° (diamond) or 0°/90° (square) orientations with respect to the face sheets. The responses in shear, tension and compression, as well as simply supported and fully clamped bending, are measured for specimens with both core orientations. While the two cores perform equally well in compression, the diamond orientation exhibits higher shear strength but lower stretch resistance. For bend-dominated loadings of the sandwich beams, the core in the diamond orientation is preferred because of its higher shear strength. For stretch-dominated loadings encountered in large-displacement, fully clamped bending, the square orientation is superior. Models of core and beam yielding are used to rationalize these observations. Optimizations are then performed to identify strong lightweight designs and to enable performance comparisons with other sandwich structures.</description><subject>Applied sciences</subject><subject>Beams (structural)</subject><subject>Bending</subject><subject>Clamping</subject><subject>Compressing</subject><subject>Exact sciences and technology</subject><subject>Hollow tube core</subject><subject>Lightweight structures</subject><subject>Metals. Metallurgy</subject><subject>Orientation</subject><subject>Sandwich beams</subject><subject>Shear strength</subject><subject>Trusses</subject><subject>Weight reduction</subject><issn>1359-6454</issn><issn>1873-2453</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2006</creationdate><recordtype>article</recordtype><recordid>eNqFkE1rGzEQhpeSQJ2Pn1DQpaGX3Y602l3pVELIFxh6SHMWY-0sltFariTX5N9XwYbempOG4Xk1L09VfeHQcOD9902DNuOMuREAfQNDU7afqgVXQ1sL2bVnZW47Xfeyk5-ri5Q2AFwMEhbV80uOe5v3ET3bUZxCnHFriYWJzZTRe2dZwu14cHbNVoRzYgeX12wdvA8HVsIpMRsipavqfEKf6Pr0XlavD_e_7p7q5c_H57vbZW0ltLkmHHVHioRE0Ss9kC4FYWjHiQOVwiDlqh3EKAFVt0LeEwnFJ9sNuNJi6trL6ub47y6G33tK2cwuWfIetxT2yQitQYBuC_jtvyAHJYoiLXhBuyNqY0gp0mR20c0Y3wpk3h2bjTk5Nu-ODQymbEvu6-kEJot-isWdS__CqlSXShXux5GjIuaPo2iSdVQ8jy6SzWYM7oNLfwHwUpSS</recordid><startdate>20061201</startdate><enddate>20061201</enddate><creator>Rathbun, H.J.</creator><creator>Zok, F.W.</creator><creator>Waltner, S.A.</creator><creator>Mercer, C.</creator><creator>Evans, A.G.</creator><creator>Queheillalt, D.T.</creator><creator>Wadley, H.N.G.</creator><general>Elsevier Ltd</general><general>Elsevier Science</general><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SR</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope></search><sort><creationdate>20061201</creationdate><title>Structural performance of metallic sandwich beams with hollow truss cores</title><author>Rathbun, H.J. ; Zok, F.W. ; Waltner, S.A. ; Mercer, C. ; Evans, A.G. ; Queheillalt, D.T. ; Wadley, H.N.G.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c403t-ead95e8e24a26897e9453073df10e873044b372d40a85ba16ee281fc57ab92f53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2006</creationdate><topic>Applied sciences</topic><topic>Beams (structural)</topic><topic>Bending</topic><topic>Clamping</topic><topic>Compressing</topic><topic>Exact sciences and technology</topic><topic>Hollow tube core</topic><topic>Lightweight structures</topic><topic>Metals. Metallurgy</topic><topic>Orientation</topic><topic>Sandwich beams</topic><topic>Shear strength</topic><topic>Trusses</topic><topic>Weight reduction</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Rathbun, H.J.</creatorcontrib><creatorcontrib>Zok, F.W.</creatorcontrib><creatorcontrib>Waltner, S.A.</creatorcontrib><creatorcontrib>Mercer, C.</creatorcontrib><creatorcontrib>Evans, A.G.</creatorcontrib><creatorcontrib>Queheillalt, D.T.</creatorcontrib><creatorcontrib>Wadley, H.N.G.</creatorcontrib><collection>Pascal-Francis</collection><collection>CrossRef</collection><collection>Engineered Materials Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Acta materialia</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Rathbun, H.J.</au><au>Zok, F.W.</au><au>Waltner, S.A.</au><au>Mercer, C.</au><au>Evans, A.G.</au><au>Queheillalt, D.T.</au><au>Wadley, H.N.G.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Structural performance of metallic sandwich beams with hollow truss cores</atitle><jtitle>Acta materialia</jtitle><date>2006-12-01</date><risdate>2006</risdate><volume>54</volume><issue>20</issue><spage>5509</spage><epage>5518</epage><pages>5509-5518</pages><issn>1359-6454</issn><eissn>1873-2453</eissn><abstract>The article focuses on the structural performance of sandwich beams with hollow truss lattice cores made from a ductile stainless steel. The trusses are arranged in an orthogonal (cross-ply) configuration, in either ±45° (diamond) or 0°/90° (square) orientations with respect to the face sheets. The responses in shear, tension and compression, as well as simply supported and fully clamped bending, are measured for specimens with both core orientations. While the two cores perform equally well in compression, the diamond orientation exhibits higher shear strength but lower stretch resistance. For bend-dominated loadings of the sandwich beams, the core in the diamond orientation is preferred because of its higher shear strength. For stretch-dominated loadings encountered in large-displacement, fully clamped bending, the square orientation is superior. Models of core and beam yielding are used to rationalize these observations. Optimizations are then performed to identify strong lightweight designs and to enable performance comparisons with other sandwich structures.</abstract><cop>Oxford</cop><pub>Elsevier Ltd</pub><doi>10.1016/j.actamat.2006.07.016</doi><tpages>10</tpages></addata></record> |
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| source | Elsevier ScienceDirect Journals |
| subjects | Applied sciences Beams (structural) Bending Clamping Compressing Exact sciences and technology Hollow tube core Lightweight structures Metals. Metallurgy Orientation Sandwich beams Shear strength Trusses Weight reduction |
| title | Structural performance of metallic sandwich beams with hollow truss cores |
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