�?�?t ε l ρ l v l + �?�?ε l ρ l v l v l = ε l �?�?τ l + ε l ρ l g �?ε l �?p �?β v l �?v s Exceeding fracture stress: Very poor estimation of development energy and slim pore–fracture Home windows waiting for link from Forum Profiles (6)