TY  - JOUR
PY  - 2015//
TI  - Compressive and bending collapse of box structure with different strength in ridgeline
JO  - Transactions of Society of Automotive Engineers of Japan
A1  - Ji, Ming
A1  - Abiko, Takuya
A1  - Okamura, Toshiaki
SP  - 645
EP  - 652
VL  - 46
IS  - 3
N2  - To overcome some of the drawbacks (such as brittleness and spot weld HAZ softening) of using AHSS for weight reduction, the strength distribution of the compressed side of a bend formed thin-walled box structure is studied in this paper by classifying different collapse modules in the ridgelines and flat plate portions. For the side under compression, an analysis model is examined and the ultimate resistance evaluations of the cross section are arrived at. Furthermore, in addition to the elastic buckling, the plastic buckling in the flat portions is discussed theoretically and an appropriate way of determining the ridgeline strength for strengthening the cross section is presented. A confirmation test and CAE simulation are developed to demonstrate the theoretical conclusions and provide reciprocal verification.<p /> <p>Language: ja</p>
LA  - ja
SN  - 0287-8321
UR  - http://dx.doi.org/10.11351/jsaeronbun.46.645
ID  - ref1
ER  -