Weakening by holes:
xa = $xa$; xb = $xb$.
Stresses in extreme fibres: st = $1.4$ MPa sC = $1.5$ MPa.
Weakness of the profile: Ao = $3.1$ cm2.(* SciskOPow The holes are enlarged.*)
Stresses:
- normal: s = $3.5$ Ds = $3.6$ MPa (*Scisk yoc = $3.7$*|*yot = $3.8$*)
(*Vy - shearing along axis Y: Av = $3.10$ cm2 t = $3.11$ MPa yov = $3.12$
*)(*Vx - shearing along axis X: Av = $3.13$ cm2 t = $3.14$ MPa yov = $3.15$
*)
Capacity conditions:
(*Scisk sec = s / yoc + Ds = $W5.1c$*|*set = s / yot + Ds = $W5.1t$*) MPa
(*Vy t ey = t / yov = $W5.2y$ MPa
*)(*Vx t ex = t / yov = $W5.2x$ MPa
*)(*VxVy $W5.3$ MPa
greglagozny