STN EN ISO 18608
| Name: | STN EN ISO 18608 |
| Validity: | Valid |
| Number of pages: | 20 |
| Language: |
EN
|
| Paper: | 14,10€ |
| Electronic version |
a) Only read (without ability to print and copy)
12,69€ b) Without ability to print, with ability to copy (printscreen) 14,10€ c) With ability to print and copy (printscreen) 18,33€ |
| Slovak title | Jemná keramika (špeciálna keramika, špeciálna technická keramika). Mechanické vlastnosti keramických kompozitov pri teplote okolia na vzduchu pri atmosférickom tlaku. Stanovenie odolnosti proti tvoreniu trhlín pri skúške citlivosti na vrub (ISO 18608: 2017) |
| English title | Fine ceramics (advanced ceramics, advanced technical ceramics) - Mechanical properties of ceramic composites at ambient temperature in air atmospheric pressure - Determination of the resistance to crack propagation by notch sensitivity testing (ISO 18608:2017) |
| Release Date: | 01. 07. 2022 |
| Date of withdrawal: | |
| ICS: | 81.060.30 |
| Sorting character/National clasification code | 72 7527 |
| Level of incorporation: | idt ISO 18608:2017, idt EN ISO 18608:2022 |
| Official Journal | 06/22 |
| Amendments | |
| Replaced by: | |
| Repleces: | STN EN 13234:2007-03 (72 7527) |
| Note in Official Journal: | |
| Subject of the standard: | ISO 18608:2017 describes a method for the classification of ceramic matrix composite (CMC) materials with respect to their sensitivity to crack propagation using tensile tests on notched specimens with different notch depths. Two classes of ceramic matrix composite materials can be distinguished: materials whose strength is sensitive to the presence of notches and materials whose strength is not affected. For sensitive materials, this document defines a method for determining equivalent fracture toughness. The parameter, Keq, is defined as the fracture toughness of a homogeneous material which presents the same sensitivity to crack propagation as the ceramic matrix composite material which is being considered. The definition of the Keq parameter offers the possibility to compare ceramic matrix composite materials with other materials with respect to sensitivity to crack propagation. |
| Preview: | Náhľad normy (PDF) |