GB/T 41794-2022 in English
VALIDGeosynthetics—Evaluation of stress crack resistance of polyolefin geomembranes—Notched constant tensile load method
- Issued on:2022-10-12
- Implemented on:2023-05-01
- File Format:PDF
- Delivery:Via email within 1~3 business days
Price(USD)：
$160.00
$156.00
$156.00
| Standard No: | GB/T 41794-2022 |
| Document status: | VALID |
| Title in English: | Geosynthetics—Evaluation of stress crack resistance of polyolefin geomembranes—Notched constant tensile load method |
| Title in Chinese: | 土工合成材料 聚烯烃土工膜耐应力开裂性能的评价 切口恒定拉伸负荷法 |
| Language: | English |
| File Format: | Electronic (PDF) |
| Delivery: | Via email within 1~3 business days |
| Issued on: | 2022-10-12 |
| Implemented on: | 2023-05-01 |
| ICS Classification: | 83.140.10-Films and sheets |
| Chinese Classification: | G33-Plastic profile |
| Professional Classification: | GB-National Standard |
| Related Keywords: | stress crack resistance
tensile stress digital twin application σ yield stress cutting preparation equipment ±0.02mm ±0.05mm ±0.03mm applied stress algorithm stress |
| Related Topics: | tensile load
membrane stress membrane stress Geomembrane a stress Geosynthetics GBT41794 GB/T 41794-2022 Geotechnical stress cracking |
《GB/T 41794-2022土工合成材料 聚烯烃土工膜耐应力开裂性能的评价 切口恒定拉伸负荷法》由TC48（全国塑料制品标准化技术委员会）归口，主管部门为中国轻工业联合会。
Introduction
Interpretation of Standard Technical Framework
| Project | GB/T41794 | ASTM D5397 | ISO 16770 |
|---|---|---|---|
| Tolerance of Cutting Preparation Equipment | ±0.02mm | ±0.05mm | ±0.03mm |
| Applied Stress Algorithm | 30%σ Yield Stress | 18-30% Variable | 25% Fixed |
| Test Temperature Control | 50±1℃ | 50±2℃ | 40±1℃ |
Details of key test elements
According to the requirements of clause 5.1 of the standard, when configuring the stress cracking tester, it is necessary to ensure that:
- Corrosion resistance of stainless steel body ≥X0Cr18Ni9
- Compensation efficiency of temperature control system ≥98%
- Counterweight error of lever system＜0.2%FS
Multi-layer material processing specifications
| Structure type | Preparation requirements | Typical error control |
|---|---|---|
| Single functional surface layer | Prioritize the groove of the functional layer | Incision depth±0.02mm |
| Dual functional surface layer | Prioritize the groove of the irradiated surface | Penetration±5μm |
Suggestions for optimization of detection process
- Intelligent reagent update: Use conductivity sensor to monitor the concentration change of NH4/10-R6 in real time
- Aging control strategy: Develop a 1% gradient decline aging test scheme for tensile stress
- Digital twin application: Establish a finite element simulation model to predict the Fa curve of ≥1500h
Sample only — not a preview of GB/T 41794-2022
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