SIP CFRP high fidelity modeling technology
JAXA Supercomputer System Annual Report April 2017-March 2018
Report Number: R17ECMP99
Subject Category: Competitive Funding
- Responsible Representative: Yutaka Iwahori, Aeronautical Directorate, Structure and Advanced Composite Technology Reasearch Unit
- Contact Information: Akinori Yoshimura yoshimura.akinori@jaxa.jp
- Members: Akinori Yoshimura
Abstract
JAXA contributes to the SIP (Cross-ministerial Strategic Innovation Promotion) program, which is governed by Cabinet Office, Government of Japan. JAXA takes charge high fidelity modeling of the polymer matrix composites for aircraft structure. The calculation for the modeling is performed in this topic.
Reference URL
Please refer to http://www.jst.go.jp/sip/dl/k03/jst_pamphlet_english.pdf .
Reasons for using JSS2
Damage simulation of the open hole tensile (OHT) test against CFRP was performed using explicit finite element damage simulation. Huge number of DOFs was necessary for detailed damage simulation in CFRP. Application of the supercomputer system makes such high-computational-cost calculation possible.
Achievements of the Year
Damage simulation of CFRP under open-hole tensile (OHT) test was performed using ECDM (Enhanced Continuum Damage Mechanics) model, which was damage model developed in JAXA.
Simulation was performed using ABAQUS/Explicit 2016 on JSS2 system. Each ply of the CFRP laminate was modeled by one continuum shell element in the thickness direction. ECDM model was implemented using user-subroutine of ABAQUS. In FY29, ECDM model was modified and final failure criteria was modified. These modification improved the precision of the simulation results.
Figure 1 shows model overview, and Figure 2 shows the predicted damage.
Publications
N/A
Usage of JSS2
Computational Information
- Process Parallelization Methods: MPI
- Thread Parallelization Methods: N/A
- Number of Processes: 12 – 120
- Elapsed Time per Case: 60.00 hours
Resources Used
Fraction of Usage in Total Resources*1(%): 0.00
Details
Please refer to System Configuration of JSS2 for the system configuration and major specifications of JSS2.
System Name | Amount of Core Time(core x hours) | Fraction of Usage*2(%) |
---|---|---|
SORA-MA | 0.00 | 0.00 |
SORA-PP | 3,968.24 | 0.05 |
SORA-LM | 0.00 | 0.00 |
SORA-TPP | 0.00 | 0.00 |
File System Name | Storage Assigned(GiB) | Fraction of Usage*2(%) |
---|---|---|
/home | 003.18 | 0.00 |
/data | 031.79 | 0.00 |
/ltmp | 651.04 | 0.05 |
Archiver Name | Storage Used(TiB) | Fraction of Usage*2(%) |
---|---|---|
J-SPACE | 0.00 | 0.00 |
*1: Fraction of Usage in Total Resources: Weighted average of three resource types (Computing, File System, and Archiver).
*2: Fraction of Usage:Percentage of usage relative to each resource used in one year.
JAXA Supercomputer System Annual Report April 2017-March 2018