{ "types" : { "Bookmark" : { "pluralLabel" : "Bookmarks" }, "Publication" : { "pluralLabel" : "Publications" }, "GoldStandardPublication" : { "pluralLabel" : "GoldStandardPublications" }, "GoldStandardBookmark" : { "pluralLabel" : "GoldStandardBookmarks" }, "Tag" : { "pluralLabel" : "Tags" }, "User" : { "pluralLabel" : "Users" }, "Group" : { "pluralLabel" : "Groups" }, "Sphere" : { "pluralLabel" : "Spheres" } }, "properties" : { "count" : { "valueType" : "number" }, "date" : { "valueType" : "date" }, "changeDate" : { "valueType" : "date" }, "url" : { "valueType" : "url" }, "id" : { "valueType" : "url" }, "tags" : { "valueType" : "item" }, "user" : { "valueType" : "item" } }, "items" : [ { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/24ad0d7a01b29554c1add6721d17c4c9f/hermann", "tags" : [ "Finite","(CLT);","Compression","Shear","Spruce","shear","(Picea","analysis;","(Fagus","abies);","Rolling","gamma-Method;","method}","{Cross-laminated","analogy","sylvatica);","Beech","element","Bending","test;","timber","wood","strength;","modulus;" ], "intraHash" : "4ad0d7a01b29554c1add6721d17c4c9f", "interHash" : "201f166932d880d63991d3876b9f56c0", "label" : "Hybrid cross-laminated timber plates with beech wood cross-layers", "user" : "hermann", "description" : "", "date" : "2017-05-18 11:32:12", "changeDate" : "2017-05-18 09:32:12", "count" : 2, "pub-type": "article", "journal": "CONSTRUCTION AND BUILDING MATERIALS","publisher":"ELSEVIER SCI LTD","address":"THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, OXON, ENGLAND", "year": "{2016}", "url": "", "author": [ "Simon Aicher","Maren Hirsch","Zachary Christian" ], "authors": [ {"first" : "Simon", "last" : "Aicher"}, {"first" : "Maren", "last" : "Hirsch"}, {"first" : "Zachary", "last" : "Christian"} ], "volume": "124","pages": "1007-1018","abstract": "A hybrid, three-layered, softwood-hardwood cross-laminated timber\n build-up with outer layers of European spruce (Picea abies) and a center\n cross-layer of European beech (Fagus sylvatica) has been investigated\n with regard to out-of-plane bending. The determination of the rolling\n shear properties of the beech cross-layer performed by different test\n and measurement methods comprising bending and compression shear tests\n was of primary interest. The shear capacity of the composite is\n significantly influenced by the spruce longitudinal shear strength at\n the beech-spruce interface. The characteristic values of rolling shear\n modulus and strength of the beech cross-layer from the bending tests\n were G(r), mean = 350 N/mm(2) and f(v,r,05) = 2.6 N/mm(2), respectively.\n Direct strain gauge measurements and compression shear tests resulted in\n 10-20\\% higher values. The high rolling shear properties render the\n shear lag implications of the softwood CLTs to a negligible quantity.\n The hybrid build-up can be designed as a rigid composite with small\n error versus a more exact analysis. The novel investigations reveal the\n great potential of mixed softwood-hardwood CLT build-ups for structural\n elements in the building sector, (C) 2016 Elsevier Ltd. All rights\n reserved.", "author-email" : "simon.aicher@mpa.uni-stuttgart.de", "issn" : "0950-0618", "keywords-plus" : "ROLLING SHEAR MODULUS; STRENGTH", "funding-acknowledgement" : "FNR, Fachagentur Nachwachsende Rohstoffe e.V. [22004014]; German\n Association of glulam manufacturers; company Eugen Decker Holzindustrie\n KG, Morbach, Germany", "research-areas" : "Construction & Building Technology; Engineering; Materials Science", "eissn" : "1879-0526", "number-of-cited-references" : "27", "affiliation" : "Aicher, S (Reprint Author), Univ Stuttgart, Mat Testing Inst MPA, Timber Construct, Pfaffenwaldring 4b, D-70569 Stuttgart, Germany.\n Aicher, Simon; Hirsch, Maren; Christian, Zachary, Univ Stuttgart, Mat Testing Inst MPA, Timber Construct, Pfaffenwaldring 4b, D-70569 Stuttgart, Germany.", "web-of-science-categories" : "Construction & Building Technology; Engineering, Civil; Materials\n Science, Multidisciplinary", "language" : "English", "funding-text" : "The work was financially supported by FNR, Fachagentur Nachwachsende\n Rohstoffe e.V., contract 22004014 within the ERA-WoodWisdom project\n ``European hardwoods for the building sector (EU Hardwoods)''. Further\n the financial and technical support by German Association of glulam\n manufacturers and the company Eugen Decker Holzindustrie KG, Morbach,\n Germany, is gratefully acknowledged.", "times-cited" : "1", "doi" : "10.1016/j.conbuildmat.2016.08.051", "bibtexKey": "ISI:000385319300100" } , { "type" : "Publication", "id" : "https://puma.ub.uni-stuttgart.de/bibtex/20dcfc5f3a6d7b12b0391a0ffcd5ebc5c/hermann", "tags" : [ "(CLT);","properties;","shear","off-axis","beech;","European","pattern;","rolling","{cross-laminated","sawing","density;","test}","timber","two-plate","strength;","modulus;" ], "intraHash" : "0dcfc5f3a6d7b12b0391a0ffcd5ebc5c", "interHash" : "b9e4931a23c8045d08d17a405b1a0b20", "label" : "Rolling shear modulus and strength of beech wood laminations", "user" : "hermann", "description" : "", "date" : "2017-05-18 11:32:12", "changeDate" : "2017-05-18 09:32:12", "count" : 2, "pub-type": "article", "journal": "HOLZFORSCHUNG","publisher":"WALTER DE GRUYTER GMBH","address":"GENTHINER STRASSE 13, D-10785 BERLIN, GERMANY", "year": "{2016}", "url": "", "author": [ "Simon Aicher","Zachary Christian","Maren Hirsch" ], "authors": [ {"first" : "Simon", "last" : "Aicher"}, {"first" : "Zachary", "last" : "Christian"}, {"first" : "Maren", "last" : "Hirsch"} ], "volume": "70","number": "8","pages": "773-781","abstract": "Previous research indicated that the rolling shear properties of\n European beech wood (Fagus sylvatica) are considerably higher than those\n of softwood. The aim of the presented investigation was to substantiate\n previous data on rolling shear modulus and strength of European beech\n wood and to further evaluate its substitution of softwoods in\n applications where shear properties are influential, namely as cross\n layers in cross-laminated timber (CLT). Further, the effect of the\n annual ring orientation within the boards on shear modulus and strength\n was of major interest. The beech specimens comprised four different\n sawing patterns, classified unambiguously with reference to the pith\n location. The shear properties were determined by 50, two-plate shear\n tests with specimen cross-section dimensions of 33 mm x 135 mm. A mean\n rolling shear modulus of 370 N mm(-2) was obtained, whereby no\n significant detrimental effect for pith boards with cracks was observed.\n In agreement with continuum mechanics, the semi-quarter-sawn boards\n revealed the highest shear moduli whereas the quarter-sawn boards showed\n roughly 30\\% lower values. The mean rolling shear strength was 5.6 N\n mm(-2) for all specimens, whereby pith specimens resulted in generally\n lower values. The 5\\% quantile, disregarding pith specimens, was 4.5 N\n mm(-2). In conclusion, the rolling shear strength and modulus exceed the\n respective characteristic values for softwoods by roughly factors of 5\n and 7, indicating great potential for beech wood cross-layers in CLT.", "author-email" : "simon.aicher@mpa.uni-stuttgart.de", "issn" : "0018-3830", "funding-acknowledgement" : "FNR, Fachagentur Nachwachsende Rohstoffe e.V. within the ERA-WoodWisdom\n project ``European hardwoods for the building sector (EU Hardwoods)''\n [22004014]; German Association of glulam manufacturers", "research-areas" : "Forestry; Materials Science", "eissn" : "1437-434X", "number-of-cited-references" : "22", "affiliation" : "Aicher, S (Reprint Author), Univ Stuttgart, Mat Testing Inst, Timber Construct, Pfaffenwaldring 4b, D-70569 Stuttgart, Germany.\n Aicher, Simon; Christian, Zachary; Hirsch, Maren, Univ Stuttgart, Mat Testing Inst, Timber Construct, Pfaffenwaldring 4b, D-70569 Stuttgart, Germany.", "web-of-science-categories" : "Forestry; Materials Science, Paper & Wood", "language" : "English", "funding-text" : "The work was financially supported by FNR, Fachagentur Nachwachsende\n Rohstoffe e.V., contract 22004014 within the ERA-WoodWisdom project\n ``European hardwoods for the building sector (EU Hardwoods)''. Further\n the financial support by German Association of glulam manufacturers is\n gratefully acknowledged.", "times-cited" : "0", "doi" : "10.1515/hf-2015-0229", "bibtexKey": "ISI:000380774900010" } ] }