I notice you’re asking for a paper on “space gass crack” — but this appears to be either a typo or a mishearing. A few possibilities come to mind in structural/civil/mechanical engineering:
If you are performing a staged construction analysis, remember that cracking is cumulative. What cracks in Stage 1 stays cracked in Stage 2. space gass crack
[ k_\theta = \fracEI_uncrackedL_crack ]
Where ( L_crack ) is an assigned cracked length (typically 5–10% of member length). Alternatively, use based on crack depth ratio ( a/h ): I notice you’re asking for a paper on