Crack tip opening angle during unstable ductile crack propagation of a high-pressure gas pipeline

K Shibanuma, T Hosoe, H Yamaguchi… - Engineering Fracture …, 2018 - Elsevier
A full gas burst test was conducted to clarify the CTOA history during ductile crack
propagation in a high-pressure pipeline. The measurement results obtained by high-speed …

A strategy to predict the fracture toughness of steels with a banded ferrite–pearlite structure based on the micromechanics of brittle fracture initiation

K Shibanuma, Y Nemoto, T Hiraide, K Suzuki… - Acta Materialia, 2018 - Elsevier
This paper presents a strategy to predict the fracture toughness of steels with a banded
ferrite–pearlite structure using a new model based on the micromechanics of brittle fracture …

Brittle crack propagation/arrest behavior in steel plate–Part I: Model formulation

K Shibanuma, F Yanagimoto, T Namegawa… - Engineering Fracture …, 2016 - Elsevier
A formulation to simulate brittle crack propagation/arrest behavior in steel plates is proposed
based on the local fracture criterion. The crack behavior is simulated within a short time by …

Prediction model on cleavage fracture initiation in steels having ferrite–cementite microstructures–Part I: Model presentation

K Shibanuma, S Aihara, K Suzuki - Engineering Fracture Mechanics, 2016 - Elsevier
A prediction model on a cleavage fracture initiation in ferrite–cementite steels is presented.
The model requires only information of microstructures without any adjustable parameters …

Relationship between strain rate concentration factor and stress concentration factor

NA Noda, Y Shen, R Takaki, D Akagi, T Ikeda… - Theoretical and Applied …, 2017 - Elsevier
In this study, the strain rate concentration is considered for high speed tensile test, which is
now being recognized as a standard testing method. To evaluate the impact strength of …

Prediction model on cleavage fracture initiation in steels having ferrite–cementite microstructures–Part II: Model validation and discussions

K Shibanuma, S Aihara, K Suzuki - Engineering Fracture Mechanics, 2016 - Elsevier
The proposed prediction model on a cleavage fracture initiation in ferrite–cementite steels is
applied to the fracture toughness tests using notched specimens of steels with various sizes …

Determination of a material constitutive equation that includes the effects of strain rate and temperature using an optimization method

H Yamada, T Sakai, N Ogasawara, M Kokudai… - Ocean …, 2023 - Elsevier
Numerical analysis of impact phenomena such as collisions and grounding of ships requires
a material constitutive equation that considers the strain rate and temperature dependence …

Brittle crack propagation/arrest behavior in steel plate–Part III: Discussions on arrest design

K Shibanuma, F Yanagimoto, K Suzuki… - Engineering Fracture …, 2018 - Elsevier
The brittle crack arrest design of a steel plate is discussed based on systematic model
simulations. The simulation results show that an essential crack arrest temperature (ECAT) …

[HTML][HTML] Influence of silicon content, strain rate and temperature on toughness and strength of solid solution strengthened ferritic ductile cast iron

T Ikeda, T Umetani, N Kai, K Ogi, NA Noda… - Materials …, 2016 - jstage.jst.go.jp
Abstract High Silicon Solid Solution Strengthened Ferritic Ductile Cast Iron possesses
advantages, such as better combination of strength-elongation, higher fatigue strength …

Conditions for notch strength to be higher than static tensile strength in high–strength ductile cast iron

T Ikeda, NA Noda, Y Sano - Engineering Fracture Mechanics, 2019 - Elsevier
In this study, notch strength σ B notch was studied for a wide range of testing speed and
temperature in comparison with the static tensile strength at room temperature σ B, RT …