Vol. 54 No. 9 CONTENTS

Original Paper (Vol.54 No.9)

Crystal Rotation with Fatigue Crack Propagation in Copper Films

Kenichi SHIMIZU, Tashiyuki TORII and Toshiyuki MORI

903

A Homogenization Theory and Its Finite Element Discretization for Nonlocal Crystal Plasticity

Dai OKUMURA, Youichi HIGASHI and Nobutada OHNO

909

A Basic Study on Cold Working of Glassy Polymers

Takashi KINBA, Shigeo HIRUMA and Yukuo NANZAI

915

Impact Tensile Strength of Laser Welded Butt Joint of Steel Sheets for Vehicles

Hiroshi TSUDA, Masashi DAIMARUYA and Hidetoshi KOBAYASHI

921

Effect of Welding Methods on Fatigue Properties of Welded Joints of High Strength Steel Sheets for Automobiles

Hiroshi TSUDA, Yoshihiko SUNAYAMA, Masashi DAIMARUYA and Hidetoshi KOBAYASHI

927

Formation of Cleavage Facet in Brittle Fracture for Duplex Stainless Steel Weldment

Toshio KURODA, Kenji IKEUCHI, Makoto TAKAHASHI and Yoshihiko KITAGAWA

935

Effects of Scratching Rate on the Corrosion Wear Mechanism of Ti-6Al-4V Alloys

Yosuke OHMORI, Jun KOMOTORI, Noriyuki HISAMORI and Byungjun LEE

940

Some Applicable Stress Functions for an Isotropic Crack and an Interface Crack in In-Plane Problems

Yasushi KUNITOMI, Kouju FUJII and Kenji NAKAGAWA

946

Development of Polyurethane/Silica Nanocomposite and Its Properties

Yaqin FU, Qing-Qing NI, Jun YAMAGATA and Masaharu IWAMOTO

952

A Study on Polymer-Modified Mortar with High Flexural Strength

Zhixiang LIN

958

Variation of Microstructure upon Residual Stress, as Obrained by the Vickers Indentation Method in Al2O3 Ceramics with Differing Aspect Ratios

Tarou TOKUDA, Mitsuo KIDO, Gonojo KATAYAMA, Takahiro YUKI and Kouji MUKAI

965

Lecture (Vol.54 No.9)

Properties of Polymer Concrete and the Structural Use‡T:Polymer Concrete as a Construction Material

Yoshihiko Ohama and Shigeru Yamaguchi

971