Hello,
I understand your concern and I am sorry you are going through this situation. It seems that your problem combines objective conditions of financial trouble and subjective modes of disproportionate anger and blaming on the part of the husband. While encouragement and optimism towards your husband for better economical prospects may or may not bear fruits you may certainly take your time to reassure him that you do not lay the blame on him. The abnormal pressure under which a family provider finds himself can hurt their self perception and worsen their behavior towards close ones. You may try to invite him to have a family life pattern to the extent of your modest possibilities and encourage mutual sympathy and support. If his anger becomes physical and he abuses you, then by all means do all you can to primarily ensure you and your children are safe and away from danger. I do not know what country you live in, but I encourage you to seek help in case of abuse at you primary care physician.
Wishing you all the best.